1 /* 2 * Rockchip machine ASoC driver for boards using a MAX90809 CODEC. 3 * 4 * Copyright (c) 2014, ROCKCHIP CORPORATION. All rights reserved. 5 * 6 * This program is free software; you can redistribute it and/or modify it 7 * under the terms and conditions of the GNU General Public License, 8 * version 2, as published by the Free Software Foundation. 9 * 10 * This program is distributed in the hope it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 13 * more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. 17 * 18 */ 19 20 #include <linux/module.h> 21 #include <linux/platform_device.h> 22 #include <linux/slab.h> 23 #include <linux/gpio.h> 24 #include <linux/of_gpio.h> 25 #include <sound/core.h> 26 #include <sound/jack.h> 27 #include <sound/pcm.h> 28 #include <sound/pcm_params.h> 29 #include <sound/soc.h> 30 31 #include "rockchip_i2s.h" 32 #include "../codecs/ts3a227e.h" 33 34 #define DRV_NAME "rockchip-snd-max98090" 35 36 static struct snd_soc_jack headset_jack; 37 static struct snd_soc_jack_pin headset_jack_pins[] = { 38 { 39 .pin = "Headset Jack", 40 .mask = SND_JACK_HEADPHONE | SND_JACK_MICROPHONE | 41 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 42 SND_JACK_BTN_2 | SND_JACK_BTN_3, 43 }, 44 }; 45 46 static const struct snd_soc_dapm_widget rk_dapm_widgets[] = { 47 SND_SOC_DAPM_HP("Headphone", NULL), 48 SND_SOC_DAPM_MIC("Headset Mic", NULL), 49 SND_SOC_DAPM_MIC("Int Mic", NULL), 50 SND_SOC_DAPM_SPK("Speaker", NULL), 51 }; 52 53 static const struct snd_soc_dapm_route rk_audio_map[] = { 54 {"IN34", NULL, "Headset Mic"}, 55 {"IN34", NULL, "MICBIAS"}, 56 {"MICBIAS", NULL, "Headset Mic"}, 57 {"DMICL", NULL, "Int Mic"}, 58 {"Headphone", NULL, "HPL"}, 59 {"Headphone", NULL, "HPR"}, 60 {"Speaker", NULL, "SPKL"}, 61 {"Speaker", NULL, "SPKR"}, 62 }; 63 64 static const struct snd_kcontrol_new rk_mc_controls[] = { 65 SOC_DAPM_PIN_SWITCH("Headphone"), 66 SOC_DAPM_PIN_SWITCH("Headset Mic"), 67 SOC_DAPM_PIN_SWITCH("Int Mic"), 68 SOC_DAPM_PIN_SWITCH("Speaker"), 69 }; 70 71 static int rk_aif1_hw_params(struct snd_pcm_substream *substream, 72 struct snd_pcm_hw_params *params) 73 { 74 int ret = 0; 75 struct snd_soc_pcm_runtime *rtd = substream->private_data; 76 struct snd_soc_dai *cpu_dai = rtd->cpu_dai; 77 struct snd_soc_dai *codec_dai = rtd->codec_dai; 78 int mclk; 79 80 switch (params_rate(params)) { 81 case 8000: 82 case 16000: 83 case 48000: 84 case 96000: 85 mclk = 12288000; 86 break; 87 case 44100: 88 mclk = 11289600; 89 break; 90 default: 91 return -EINVAL; 92 } 93 94 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, mclk, 95 SND_SOC_CLOCK_OUT); 96 if (ret < 0) { 97 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 98 return ret; 99 } 100 101 ret = snd_soc_dai_set_sysclk(codec_dai, 0, mclk, 102 SND_SOC_CLOCK_IN); 103 if (ret < 0) { 104 dev_err(codec_dai->dev, "Can't set codec clock %d\n", ret); 105 return ret; 106 } 107 108 return ret; 109 } 110 111 static int rk_init(struct snd_soc_pcm_runtime *runtime) 112 { 113 /* Enable Headset and 4 Buttons Jack detection */ 114 return snd_soc_card_jack_new(runtime->card, "Headset Jack", 115 SND_JACK_HEADSET | 116 SND_JACK_BTN_0 | SND_JACK_BTN_1 | 117 SND_JACK_BTN_2 | SND_JACK_BTN_3, 118 &headset_jack, 119 headset_jack_pins, 120 ARRAY_SIZE(headset_jack_pins)); 121 } 122 123 static int rk_98090_headset_init(struct snd_soc_component *component) 124 { 125 return ts3a227e_enable_jack_detect(component, &headset_jack); 126 } 127 128 static struct snd_soc_ops rk_aif1_ops = { 129 .hw_params = rk_aif1_hw_params, 130 }; 131 132 static struct snd_soc_aux_dev rk_98090_headset_dev = { 133 .name = "Headset Chip", 134 .init = rk_98090_headset_init, 135 }; 136 137 static struct snd_soc_dai_link rk_dailink = { 138 .name = "max98090", 139 .stream_name = "Audio", 140 .codec_dai_name = "HiFi", 141 .init = rk_init, 142 .ops = &rk_aif1_ops, 143 /* set max98090 as slave */ 144 .dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF | 145 SND_SOC_DAIFMT_CBS_CFS, 146 }; 147 148 static struct snd_soc_card snd_soc_card_rk = { 149 .name = "ROCKCHIP-I2S", 150 .owner = THIS_MODULE, 151 .dai_link = &rk_dailink, 152 .num_links = 1, 153 .aux_dev = &rk_98090_headset_dev, 154 .num_aux_devs = 1, 155 .dapm_widgets = rk_dapm_widgets, 156 .num_dapm_widgets = ARRAY_SIZE(rk_dapm_widgets), 157 .dapm_routes = rk_audio_map, 158 .num_dapm_routes = ARRAY_SIZE(rk_audio_map), 159 .controls = rk_mc_controls, 160 .num_controls = ARRAY_SIZE(rk_mc_controls), 161 }; 162 163 static int snd_rk_mc_probe(struct platform_device *pdev) 164 { 165 int ret = 0; 166 struct snd_soc_card *card = &snd_soc_card_rk; 167 struct device_node *np = pdev->dev.of_node; 168 169 /* register the soc card */ 170 card->dev = &pdev->dev; 171 172 rk_dailink.codec_of_node = of_parse_phandle(np, 173 "rockchip,audio-codec", 0); 174 if (!rk_dailink.codec_of_node) { 175 dev_err(&pdev->dev, 176 "Property 'rockchip,audio-codec' missing or invalid\n"); 177 return -EINVAL; 178 } 179 180 rk_dailink.cpu_of_node = of_parse_phandle(np, 181 "rockchip,i2s-controller", 0); 182 if (!rk_dailink.cpu_of_node) { 183 dev_err(&pdev->dev, 184 "Property 'rockchip,i2s-controller' missing or invalid\n"); 185 return -EINVAL; 186 } 187 188 rk_dailink.platform_of_node = rk_dailink.cpu_of_node; 189 190 rk_98090_headset_dev.codec_of_node = of_parse_phandle(np, 191 "rockchip,headset-codec", 0); 192 if (!rk_98090_headset_dev.codec_of_node) { 193 dev_err(&pdev->dev, 194 "Property 'rockchip,headset-codec' missing/invalid\n"); 195 return -EINVAL; 196 } 197 198 ret = snd_soc_of_parse_card_name(card, "rockchip,model"); 199 if (ret) { 200 dev_err(&pdev->dev, 201 "Soc parse card name failed %d\n", ret); 202 return ret; 203 } 204 205 ret = devm_snd_soc_register_card(&pdev->dev, card); 206 if (ret) { 207 dev_err(&pdev->dev, 208 "Soc register card failed %d\n", ret); 209 return ret; 210 } 211 212 return ret; 213 } 214 215 static const struct of_device_id rockchip_max98090_of_match[] = { 216 { .compatible = "rockchip,rockchip-audio-max98090", }, 217 {}, 218 }; 219 220 MODULE_DEVICE_TABLE(of, rockchip_max98090_of_match); 221 222 static struct platform_driver snd_rk_mc_driver = { 223 .probe = snd_rk_mc_probe, 224 .driver = { 225 .name = DRV_NAME, 226 .pm = &snd_soc_pm_ops, 227 .of_match_table = rockchip_max98090_of_match, 228 }, 229 }; 230 231 module_platform_driver(snd_rk_mc_driver); 232 233 MODULE_AUTHOR("jianqun <jay.xu@rock-chips.com>"); 234 MODULE_DESCRIPTION("Rockchip max98090 machine ASoC driver"); 235 MODULE_LICENSE("GPL v2"); 236 MODULE_ALIAS("platform:" DRV_NAME); 237